Coil-mounting



R. F. GOWEN.

COIL MOUNTING. v

APPLVLCATION HLED JULY 23, 1920.

1,39 ,372, Patented Nov. 29,1921.

STATES FFlQE.

BEE-BERT E. GOV/"EN, OF NEW YORK, N. Y., ASSIGNOR TO DE FOREST RADIOTELEPHONE I AND TELEGRAPH GOLYIPANY, OF NEW YORK, N. Y., A CORPORATIONOF DELAWARE.

COIL-MOUNTING.

ancers.

Specification of letters Patent.

Patented Nov. 29, 1921.

Application filed July 23, 1920. Serial No. 398,521.

To all? whom it may concern.

Be it-known that I, ROBERT F. GowEN, a citizen of the United States,residing at New'Y'ork, county of WVestchester, and State of New York,have made a certain new and useful Invention in Coil-Mountings, of whichthe following is a specification.

This invention relates to coil mounts, and is especially adapted for usein connection with inductance coils such as are commonly employed in theradio art. v

The object of the invention is to provide a a coil mount which is simplein structure,

eilicient for its purpose, and economical of manufacture.

A further object of the invention is to provide a coil mount which isspecially adapted for use in connection with the honeycomb and duolateral types or" coils now in common use in the radio industry.

Further objects of the invention will appear more fully hereinafter.

The invention consists substantially in the construction, combination,location and relative arrangement of parts, all as will be more fullyhereinafter set forth as shown by the accompanying drawing and finallypointed out in the appended claims. Referring to the drawing,

Figure l is a view in side elevationof a coil mounting embodying myinvention.

Fig. 2 is a View in perspective of the same.

, Fig. 3 is a View in perspective wltli the parts partially detached.

The same partis designated by the same reference numeral Wherever itoccurs throughout the several views.

In my copending application, Serial No. 287,397, filed April 4, 1919,for self supporting inductance coils, I have shown and described whathas become known in the radio art as the honeycomb type of inductancecoil, and in one modification thereof as the duo lateral type ofinductance coil; also in in co-pending applicatioii, Serial No. 318,63l,fi ed August 20, 1919, for inductance coil mounting, I have shownarrangements of support for use of these coils as inductance 0011s intlie radio art where the coils are used for loose coupling of therespective ject matter of my present application asis illustrated -inthe drawing forming part hereof wherein the coil 1 is circular in shapewith a circular opening therethi-ough. In the form shown the coil isformed of a single wire wound upon a base 2 of nonconducting materialsuch as cardboard or the like. The wire is wound upon the base at aconstant pitch. When the opposite edge of the coil is reached thedirection of the wire is reversed, but the pitch remains the same, sothat this layer of the wire runs in an opposite direction, but at thesame pitch. The layers are thus built up one upon the other until therequired height is reached according to the specifications of the coilemployed as to inductance therein,

etc, and the unit thus constructed is coated in the usual nianner with asubstance which binds the coil thus built up into a rigid unit such as aself-supporting coil, with the ends 3 and 4 of the wire extendingtherefrom for the purpose of being connected to the terminals, whichwill be more fully hereinafter described. While I have shown anddescribed the coil as of the honeycomb or inductance or duo lateraltype, I do not desire to be limited or restricted thereto as it isobvious that the mounting of in invention may be equally well applied toany form of circular coil. If. desired, and as shown, in addition to thecoating which acts toward keeping the coil in a selfsupporting unit atape 5 may be wound around the coil, and preferably at the point wherethe ends thereof protrude therefrom to thereby retain the ends of thewire in the proper position relative to the coil. I provide a block ofinsulating material of any suitable shape or size indicated at 6 inwhich are located to extend therethrough a plug 7 and a jack 8. The plugand jack method of forming electrical contact is the method now mostgenerally in use, and though therefore I have illustrated this type ofelectrical circuit connection I do not desire to be limited orrestricted in this respect. The ends 3 and 4 of the wire are suitablyconnected, for example, soldered, to the ends of the plug and jack: 7and 8 in the usual well known manner. The opposite sides of the blockmemher 6 have holes therein adapted to register with threaded horingsthrough the plug and jack respectively. A'strap 10 is then block.

fastened to th opposite sides of the block 6,

and secured thereto by means of a metal plate 11, held by means ofscrews inserted through the plate; and extending in the holes in theblock, and the plug and jack respectively, to thereby clamp the freeends of the strap against the respective top and bottom surfaces of theblock. From the foregoing it will be seen that I have provided anexceedingly simple and efficient mounting for a-coil of the circulartype, the "strap 11 holding the coil rigid relative to the block 6 withno strain imposed upon the ends 3 and 4 of the wire and enabling in acoil of this type a handy convenient unit adapted to be plugged into orotherwise electrically connected to the terminals of a circuit in whichthe coil is to be included. Where a honeycomb type of coil is employed,or in fact in any instances where it is desired to utilize thesurrounding air for affecting the capacity-of the coil, the strap 11 maybe provided with a" number of perforations or orifices therethroughthroughout its length,

- Many modifications and changes in detail will readily occur to thoseskilled in the art without departing from the spirit and scope of myinvention as defined in the claims.

Therefore what I claim as new and useful and of my own invention anddesire to secure by Letters Patent is,-

1. The combination with a wire. coil having wire terminals, of a blockof insulating material having electrical terminals therein connected tosaid wire terminals, and a strap extending around the outer surface ofsaid coil, and secured at its ends to said 2. The combination with awire coil having wire terminals, of a block of insulating materialhaving plug and jack terminals therein connected to said wire terminals,and a strap extending around the. outer surface of said coil and securedat its ends to said block.

3. The combination with a wire coil having wire terminals, of a block ofinsulating material having electrical terminals therein connected tosaid wire terminals, and a strap of non-conducting material extendingaround the outer surface of said coil and secured at its ends to saidblock.

4:. The combination with a wire coil having wire terminals, of a blockof insulating material having plug and jack terminals therein connectedto said wire terminals, and a strap of non-conducting material extendingaround the outer surface of said coil and secured at its ends to saidblock.

5. The combination with a wire coil having wire terminals, of a block ofinsulating material having electrical terminals therein connected tosaid wire terminals, and a strap extending around the outer surface ofsaid coil and secured at its ends to said'block,

coil, and secured at its ends to said block,

through.

6. The combination with a wire coil having wire terminals, of a block ofinsulatingmaterial having plug and jack terminals therein connected tosaid wire terminals, and a strap extending around the outer surface ofsaid coil and secured at its ends, to said block, said strap beingprovided with perforations to permit the passage of air therethrough.

7. The combination wit-h a wire coil having wire terminals, of a blockof insulating material having electrical terminals therein connected tosaid wire terminals, and a strap of non-conducting material extendingaround the outer surface of said coil and secured at itsends to saidblock, said strap being provided with perforations to permit the passageof air therethrough.

8. The combination with a wire coil having wire terminals, of a block ofinsulating material having plug and jack terminals therein connected tosaid wire terminals, and a strap of non-conducting material extendingaround the outer surface of said said strap being provided withperforations to permit the passage of air therethroug 9. The combinationwith a wire coil ha J, ing Wire terminals, of a block of insulatingmaterial having electrical terminals therein connected to said wireterminals, and a strap extending around the outer surface ,of said coil,clamping plates, and means for clamping the free ends of said strapbetween said plates and said block.

10. The combination with a wire coil having wire terminals, of a blockof insulating material having electrical terminals therein connected tosaid wire terminals, and a strap extending around the outer surface ofsaid coil, clamping plates positioned over the free ends of said strap,and screws extending through said plates into said block for securingsaid strap and plates thereto.

11. The combination with a wire coil having wire terminals, of a'blockof insulat- 1i ing material having plug and jack terminals thereinconnected to saidwire terminals, and a strap extending around the outersurface of said coil, clamping plates positioned over the free ends ofsaid strap, and 1 screws extending through said plates into said blockfor securing said strap and plates thereto. 7

12. The combination with a wire coil having wire terminals, of a blockof insulat- 1 over the free ends of said strap, and screws 12m extendingthrough said plates into said block and said plug and jack terminals,respectively, for securing said strap, plates and terminals to saidblock.

13. The combination with a wireeoil having Wire terminals, of a block ofinsulating surface of said into said block and said plug and jack forsecuring the ends of said strap to said block.

In testimony whereof I have hereunto material having plug and jackterminals 1920 therein connected to said Wirev terminals, and a strapextending around the outer ROBERT F. GOWEN.

coil, and means extending 10.

set my hand on this 19th day ofJuly-A. D., 15

